If you do this:
iinfo -v myfile.pgm # or whatever the name of your file actually is
what does it say?
On Sep 9, 2013, at 8:16 AM, Ramiro Pereira de Magalhães wrote:
> Hi,
>
> I have just learned about OIIO and I wrote a simple program with OpenImageIO
> to load a 10GB PGM file into memory. To try things out I wrote a simple
> program to load a 10GB PGM (yeah, PGM) file into memory. Sadly, the program
> crashes prior to completing its task with a Segmentation Fault. The machine
> where this is running has 64GB RAM, most of it free. Can anyone help me
> figure out this issue?
>
> Bellow is the program I wrote. It is pretty simple: load the image given as
> argument to it into a buffer, then close the file, clean the buffers and
> leave.
>
> ================CODE================
> #include <iostream>
> #include <string>
> #include <sstream>
> #include <OpenImageIO/imageio.h>
>
> OIIO_NAMESPACE_USING
>
> int main(int argc, char* args[])
> {
> if (argc != 2)
> {
> return 1;
> }
> const std::string filePath = args[1];
>
> ImageInput *in = ImageInput::open (filePath);
> const ImageSpec & spec = in->spec();
> const int size = spec.width * spec.height;
>
> unsigned char * pixels = new unsigned char[size];
> in->read_image(TypeDesc::UCHAR, pixels);
> std::cout << "Done reading." << std::endl;
> in->close();
> std::cout << "Closed file." << std::endl;
>
> delete in;
> delete pixels;
>
> std::cout << "Outta here." << std::endl;
> return 0;
> }
> ================CODE================
>
>
> Segfault happens at line 173 of onminput.cpp. Here is the call stack given by
> Qt Builder:
>
> 0 OpenImageIO::v1_3::raw_to_raw<unsigned char> pnminput.cpp 173
> 0x7ffff798c1e6
> 1 OpenImageIO::v1_3::PNMInput::read_file_scanline pnminput.cpp 272
> 0x7ffff798b09c
> 2 OpenImageIO::v1_3::PNMInput::read_native_scanline pnminput.cpp 385
> 0x7ffff798b91e
> 3 OpenImageIO::v1_3::ImageInput::read_native_scanlines imageinput.cpp
> 260 0x7ffff76d9280
> 4 OpenImageIO::v1_3::ImageInput::read_scanlines imageinput.cpp 197
> 0x7ffff76d8c24
> 5 OpenImageIO::v1_3::ImageInput::read_scanlines imageinput.cpp 165
> 0x7ffff76d8977
> 6 OpenImageIO::v1_3::ImageInput::read_image imageinput.cpp 631
> 0x7ffff76db3c8
> 7 main show.cpp 31 0x4012b7
>
>
> I compiled OIIO from the git commit d64b9ac8a63261040ae0263b0709924d8fecf4df
> (Tue Sep 3 12:53:12 2013 -0700).
>
> I appreciate any help.
> _______________________________________________
> Oiio-dev mailing list
> [email protected]
> http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org
--
Larry Gritz
[email protected]
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